Members of Williams’ talk-show crew surprised her on her 52nd birthday with a stunning sapphire-and-diamond brooch that belonged to the late Joan Rivers.

On Tuesday’s episode, Williams recounted falling in love with the bauble when Joan’s daughter, Melissa, was on the show in June to preview her mother’s belongings that were to be auctioned off by Christie’s later that month.

“Look how pretty that is on you,” Melissa said in June, “This is definitely in your price range.”

Made of 11 cabochon sapphires, 29 old-cut diamonds and enamel, the orchid brooch is mounted in gold.

The talk-show host posted an Instagram pic of her new bling on Tuesday, writing, “Thank you @joanrivers for such great memories! Thank you DebmarMercury for your winning bid!” Debmar-Mercury produces and distributes “The Wendy Williams Show.”